| Time：1141217 (Wed.) 14:20~16:20 Speaker：Prof.陳婷琬/ Chen, Ting-Wan 國立中央大學天文研究所/Graduate Institute of Astronomy, National Central University Title：Superluminous Supernovae: Extreme Stellar Explosions as Cosmic Lighthouses Abstract： Superluminous supernovae are among the most extreme stellar explosions known, reaching luminosities more than a hundred times brighter than classical supernovae yet occurring only a tiny fraction as often. Wide-field surveys have expanded the sample from a few curiosities to hundreds of events, revealing new subtypes and evidence for strong interaction between the ejecta and surrounding material. Studies of their host galaxies show that superluminous supernovae prefer low-mass, metal-poor, star-forming dwarfs, offering important clues to their progenitors and environments. Recent work also suggests that some superluminous supernovae may be efficient dust factories, with implications for dust enrichment in the early universe. On the theoretical side, models have evolved from simple radioactive decay to a richer picture that includes magnetar spin-down, ejecta–CSM interaction, and fallback accretion, tested with simulations and statistical fitting. In this talk, I will give an overview of what we have learned about SLSNe so far and highlight how upcoming facilities and surveys, including rapid-response spectroscopy, space-based near-infrared imaging, and large transient samples from the Vera C. Rubin Observatory, will help us pin down their progenitor channels, clarify their energy sources, and use these rare explosions as luminous beacons to probe the distant universe. Place：S101, Gongguan Campus, NTNU |
